Kyle sat quietly in his room, the candlelight flickering as he finished writing the note with practiced strokes.
The wax seal pressed firm beneath his ring bore the Armstrong insignia, but more importantly, the layer of mana infused into the seal ensured only one man could open it—Duke Armstrong himself.
He stood, holding the letter for a long second before summoning the butler.
"Deliver this to the Duke. Personally. No matter what happens, make sure it reaches him."
The butler, eyes wide at the urgency in Kyle's voice, took the note and nodded.
"Yes, Lord Kyle. Right away."
Not long after, Duke Armstrong was in the middle of reviewing strategic reports when the butler entered, his face pale with tension.
The Duke raised an eyebrow as the sealed letter was handed to him. The moment his fingers touched the wax, the mana seal responded to him alone, allowing the envelope to open silently.